Reset your BIOS to default values, and ensure that you have the latest version of the BIOS (this is no guarantee, but it may help). If the system doesn't crash then, then you've found your culprit.
*Check if BIOS update is available and if his relevant to your problem.
*Try to downgrade you...
Your computer isn't suppose to crash, and leave it just like that - unsolved, isn't a good idea.
Be sure that your computer save's the minidump files, and upload them to your post.
These minidump files are created every time your computer stops unexpectedly.
If you havn't already turned on...
Which "Stop" message you get?
for example: "STOP: 0x0000000A"
If you don't know / can't see the stop message - upload your minidump files and I will analyze them for you.
You will find the minidump files in this location:
%systemroot%\minidump
Try to scan for malicious programs.
Open MSCONFIG (Microsoft System Configuration Utility) via "Run" command
and disable start-up programs that you don't need.
In case you have lots of start-up programs, that could be the major cause for this problem.
Here is link for some nice guide that can...
AFAIK, SD card will not effect in any way on your GPS.
(maybe it will, if you're going to blow youre internal memory with a lot of files)
If you're not thinking about adding music and pictures (I find it unnecessary at all. this is not the purpose of the GPS) - you don't need to add an SD card.
Are you using "managed" PC? (part of a network for example)
Some of the most common "problem" related to to the screen-saver wait times,
is that your PC is under GPO (AKA "Group policy object").
One of the major reasons of being under GPO, is for security purposes
If that's true, you...