After leaving my desktop untouched for quite some time, I hooked it all up and tried to boot it. Everything functions fine right up to the log in screen; once I log in, it loads up a black screen and mouse cursor and everything is extremely sluggish to respond. 3~ minutes to ctrl shift esc to load task manager. if I wait long enough (often 10+ minutes) some things load, including the task bar. trying to get the task manager to respond to reload explorer.exe takes forever, and often doesn't change anything. The PC will also not shutdown on its own, it just stays at the shutdown loading screen and goes no further. Boots up in safe-mode just fine. The one time I did manage to get most of the desktop loaded (with extreem patience and over an hour of reloading explorer and waiting) I checked and installed all updates listed. Same issue, no change. I have tried booting with only kb/mouse plugged in, doesn't help. I have tried google and all the advice seems to be restart explorer.exe. which takes a long time when the pc is not responding. I have re-seated my ram and graphics card. Running windows 7 ultimate any feedback would be most appreciated, any solutions will be tried and hopefully can solve this problem. Thanks in advance!