SolidGoldFunk - it sounds like you have data corruption in the Windows system folders or your master controller chip on the laptop is going buggy.
Have you tried using an extrernal mouse and keyboard? I have had to resort to this on an ailing laptop from time to time. Even had to go so far as to use an external monitor a few times.
Laptops are ill-starred beasts on the best of days, a menace to your sanity on the worst. Sager notebooks are generally regarded as free from most of the most common bugs, a little lack-lustre in batteries, but otherwise top-notch goods. Have you used their web tech support form? this is generally preferable since their telephone support is usually slow and results in playing "phone tag". You mention that you don't have enough time left in your current situation, I assume you are moving over-seas, and this presents its own range of difficulties in shipping. In all -- it doesn't look good for you in the "back to the factory" arena because between the risk of damage/loss in shipping a laptop over-seas and the likelihood of having to pay some outrageous duty tax, it looks like a lose-lose to me.
I think, you will probably need to do a complete re-install; not a restore. That will mean getting CDs with the right version of Windows and having a copy of all the necessary drivers burned to disk. This won't necessarily make it hale and whole, but will inform you if it is more than just a operating system issue.
Keep in mind, laptops are disposable computers. They are not and never have been equal to their desk-trapped brothers. depending on how many hours you have used your laptop, you may very well have exceded its hours-of-expected-use life-expectancy, gamers almost invariably do.
If you don't have the CDs, then your best bet is to contact Sager via their email addess for these matters:
websupport@sagernotebook.comExplain exactly your situation, your future address, and ask them if they have a reliable means to ship these materials to your new (over-seas) address. It may well mean breaking no few number of US laws to get it shipped to you, but far fewer than would be broken sending a sophisticate piece of eletronic equipment (which they would probably destroy using an EMR bomb detector on anyway).