Any chance that you are using old fuel? Our local stihl guy says max 8 week old fuel. If in doubt, I'd put in a new spark plug (just clean the one you've got if it's not old, and make sure you didn't drop it and screw up the gap) and at least clean the air filter. Empty the fuel that is in it and put in fresh (you don't have a primer bubble?). Try setting it on the floor and put your foot in the handle and hold the loop handle with one hand while starting it with the other. Full choke and full quick pull. As soon as it even hints at a spark (usually by the second pull) go to half choke and it should start right up. You shouldn't touch the gas trigger until it is started. Otherwise, you'll flood it and wear yourself and three of your buddies out trying to start it. Sounds like that may be part of your problem because, by the time you took it to someone else, it started right up. If that doesn't help and you have a stihl dealer handy (or any good service shop)they'll take care of you. There's no shame in starting a saw on the ground. Good Luck

Ruggs, this answer is for you. ***"is that the trick where i pull the plug and use a screw driver and rotate the piston till its at TDC? where the screw driver is at its farther point outward?"*** Yes, sorta, kinda! But there are 2 points in the rotation of the crankshaft where that will occur, if you don't get the right spot of the 4-stroke cycle, one of the valves will not be in the right position to check/adjust the clearance. The "right spot" is at Top Dead Center on the COMPRESSION stroke, and then turn the engine further until the screwdriver drops down 1/4" into the cylinder. You can tell if the engine is in the right spot by "shaking" the rocker arms and/or looking at the valve springs. If the engine is at TDC on the COMPRESSION stroke, both valve springs of the cylinder will be fully extended and you will feel "looseness" when you shake the rocker arms. If the engine is at TDC on the EXHAUST stroke, the exhaust valve spring will be depressed and appear shorter than the intake valve spring. You will also observe that there is no looseness in the rocker arm on the exhaust valve. mcherchio, you need to start a thread of your own now to continue pursuit of your problem. I should have suggested that right from the start but sometimes posters get intimidated if you make that suggestion right from the start because they feel they are being chided or brushed off. Surely you understand now how hijacking an existing thread can lead to confusion. I mean, currently, I'm talking to two people about 2 different machines. If this keeps up........I'll soon be talking to myself. Just fix yourself a thread for your problem and we will pursue it there. We have "borrowed" ruggs' thread long enough. :^)

Right click on the Desktop. Select View from the appearing drop down menu. What is checked? DA

camp56, damccoy,ravencajun, and stargazzer, Thank you for the quick responses. Below are my answers to the questions you have asked. The browser is IE8. The version I downloaded yesterday was Adobe Flash Player 10 ActiveX. I uninstalled it, and downloaded and installed it again. Using START> Control Panel>Programs and Features I confirmed what I re-downloaded was Adobe Flash Player 10 ActiveX. The system I have is 32 bit. After downloading and installation, I still could not see any animation. I went to the sites that ravencajun suggested, went on YouTube too, saw nothing but the same dreadful messages " You don't have current Adobe Flash Player", or "cannot find Adobe Flash Player". I have not try Safe Mode yet. Will it help? How can I get to it? Thank you again for the help.