Some good people on another bulletin board have been trying to help me with my computer. It was suggested I ran Hijack This and post up the log.
They're not sure what the following is but thinks it may be suspicious, so they went me here to ask.
O20 - Winlogon Notify: DfLogon - C:\WINNT\SYSTEM32\LogonDll.dll
Grateful for any help.
PS: I'm a technophobe so please speak English :$