the main thing is that you have to have one instance of IE open and have that copy fully maximized usually by just clicking on the maximize option but if you have to drag it out to maximize it then you can do that, NOW the important thing once it is set the size you want it, close the IE by hitting the red x. Next time you open IE it should remember that setting and keep it. Do not open any other windows or tabs before you close it that time.

Is the Run line the same as the Command line? I thought so, but perhaps not. I found what I think is the Command line, and typed in Outlook.exe/resetnavpane. Got the following message: 'Outlook.exe' is not recognized as an internal or external command, operable program or batch file. On to Owbist's suggestion. The first part of the instructions involved opening the program first, which obviously I can't do. But there's a reference to a Plan B, which I'll check out. Thanks, both of you.

Its usually pretty simple,, just close your browser and any instant messaging programs and go to add/remove programs in control panel and double click ie8. You might want to read the microsoft support article for XP. Here is a link that might be useful: Microsoft Support - Uninstall IE8

Here is some more information on experimenting: First experiment: I switched the wires connected to the UP limit and DOWN limit connectors on the limit switch assembly. I was hoping to fool the RPM sensor or the receiver logic board into thinking the garage door was closed (but, actually fully open, 6 inches before stop bolt) and have the opener actually move the garage door in the closing position. But, this did NOT work. Instead, the garage door moved towards the open direction until it hit the BOLT on the rail and the motor hummed a little bit. I switched the limit wires back to their original position. Next experiment: I manually turned the motor shaft to move the trolly in the closing direction. I moved the trolly all the way to the fully close position and I connected the garage door to the trolly. So, now the garage door is completely closed. I pressed the garage opener button and the garage door starts moving in the opening direction. I let the door open about two feet and I press the remote button again and the garage door stops immediately. I press the remote button again (in normal operation the garage door would start closing) and I hear a relay click and two seconds later the garage door starts moving in the opening direction. The pattern repeats itself until the garage door reaches its UP limit. After that, I just hear the relay click when I press the remote button. So, can we pinpoint the issue with the additional information? ;-) What are the signals going to/from the RPM sensor to the receiver logic board? There is another wire going from the RPM sensor to the limit switch assembly. If I had some more information on the what each wire means, maybe I can pinpoint which component is bad. How about I switch the wires on the motor? Will that help pinpoint the bad component? Thanks, Santos