Basically my computer forgets all my settings once I reboot.

If an Explorer window is opened before I restart my computer, it should pop up again when I reboot but it doesn't. My settings with IE --Options for Google are forgotten and more importantly amongst others, the following:

Though the mouse wheel under both "Control Panel/Mouse Properties and in Microsoft's Power Toys' TweakUI is set to 6 lines per movement it goes back to One roll per page after every re-boot. How can I set it so that it remains as is?

Finally, CapsLock key won't beep though it was set to do so.

Any advice as to why this is so and how I could change it?

Thanks in advance

Computer: Acer TravelMate 270 XVi labtop
Processor: Pentium 4
OS: Windows XP Home edition.
Browsers: IE 6.0, Mozilla 4.0
Antivirus: AVG
Firewall: Sygate Personal Firewall
Other running software: "Internet CleanUP", "TuneUp Utilities", "Google search bar", "Roboform"
RAM: 512 Hard Disks: 30G (2 partitions - FAT32) & 40G (NTFS)