Using the IDE on Windows XP works vey well! Just installed it (0022) on a Windows 7 computer - the IDE is now very slow!
Close to a minute to start and close to 30 secs to get the Tool menu to react...
I have a Bluetooth mouse and I can confirm that the slowness is due to the Bluetooth mouse.
Hitting the "switch-off-WiFi-Bluetooth-etc" button on my computer bring back the speed immediately! But then I can not use my mouse...
Please try and fix this - I would help if I could! This thread has a solution that maybe can be included in the 0023..? http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1237179908/15
Thank you for arduino! The most FUN thing I have come across for many years!