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#11
Went to the local Target last week anc pickeup a Logitech EX100 Wireless Keyboard and Mouse for $19.00 and everything is fine. Months spent trying to get my MS Keyboard and mouse to work. Should have saved my sanity months ago. If you're having the same problem, suggest buying this inexpensive solution. Noticed at a BJ's wholesale club yesterday they're selling the same combo pack, same price.
I had the same problem with a Microsoft wireless keyboard / mouse in Windows 7
Windows 7 loads apparently a standard driver. After having downloaded the correct driver from Microsoft works my screensaver perfect.
Link to driver: Software Downloads | Microsoft Hardware