Changing IRQs for graphics and tuner in Vista

Hi,

My DELL C521 has just one PCIe x16 for my graphics card and one PCIe x1 for my Compro E900F tuner card.

Vista has them both using the same IRQ, I seem to have plenty of spare ones but cannot see how to make each card use a unique interrupt.

I thought IRQs became more of a virtual thing with WinXP/Vista and that two devices sharing an IRQ should not take a hit on performance, is this right?

From launching WMC it takes 1-2 mintes to go to live TV. I had this message from Compro support...

2 minutes is way too long. Generally it should be within 5 seconds. You may try to set up the IRQ in the motherboard's bios. Try an independant IRQ for the TV card.
_________________
Ian Lee Support Engineer
COMPRO Technology, Inc.


...but how do I do this. There are no settings for this in my bios and no spare PCIe slots to try and force a re-shuffle

Many thanks
__________________
Dave
UK
DELL C521 Athlon x64 dual core 5000+, 2GB RAM, Galaxy 9600GT 512MB DDR3, Compro E900F dual hybrid tuner. Vista Home Premium SP1.