what make is the pc,
most of the big names still have
bios updates on their websites.
or you can check the mfg of the motherboard site.
now if you decide to upgrade, take a look at these
ibm pc just off lease with win xp included and
free shipping. Nice LCD monitors too.http://www.ibm.com/products/specialoffers/us/icue.html
You'll have plenty of cpu for sstv and digital modes.