Ubuntu crashing

[Ken T.]

I upgraded to Intrepid a while back and since then I've had some 
difficulty with my laptop crashing.  It is an Inspiron 1525 from Dell.  
When it crashes the screen doesn't change but everything seizes up.  The 
caps like and num lock indicators flash and the only solution is a hard 
reboot.  

Any idea what is happening or how to fix it?  I'd like to move to Jaunty 
but I'm affected by a bug that leads to hard disk corruption, so for now 
it is out.  

I don't think this was a problem with Hardy. 

Thanks. 

-- 
Ken T. <ktectropy at gmail.com>