OK most of us are using Appserv.
If you have Vista - DO NOT USE Appserv 2.6.0 - It will not load
Unsure about this in XP but i dont think it has the same errors.
For Vista Users - Use Appserv 2.5.1
Also Noticed people on Vista using Navicat if they cant get 2.6.0 working - this will also not work due to u using 2.6.0.
Hope this helps and if youve found this topic pointless - please do tell me