Uninstall the tweak program and review the Default column for the OS you installed at http://www.blackviper.com/WinXP/servicecfg.htm
I've been having trouble recently booting up XP. For the past week or so, I've noticed that when I start up my computer, about 1/4 of the time, explorer won't load (meaning no taskbar and no desktop shortcuts, just my nice backgorund and nothing else). If I hit CTRL+ALT+DEL, I can see in the processes tab that everything (as far as i can tell) that's needed is running, except explorer.exe.
Now, as for my technical situation:
I'm running Windows XP on a Dell Inspiron 6400 / E1505 (In Canada), it has an Intel Core 2 Duo @ 2GHz, 2GB of RAM, an ATI X1400 256MB video card, a 160GB HDD, etc. Standard stuff. I'm running AVG free as my antivirus and Threatfire as my antispyware.
One thing to note is I've taken to tweaking my computer quite a bit, meaning I've been into msconfig to modify startup processes in order to speed up windows booting, as well as running TuneXP to modify certain things in order to increase performance.
Being an avid tweaker I can understand something might have gone wrong in what I've done, but all these mods were done a while ago, and I've only been getting problems now. I can't link the problems starting to any particular event or installation, so I was wondering if anyone here had any idea what's wrong, and how I could fix it. I've been contemplating a reformat, but if there's an easier way out I'll take it.
Thanks in advance for any help.