guys pls help!

since today, both my lan-ports on the m2r do not work anymore. i cleared cmos, flashed bios 3 times, went on optimized defaults none work.

they do not show up in the hardware manager and the lights are not flashing neither on the router nor on the board side.

i now use a pci lan card which works, so, its not router, cable or anything.. can you imagine a possible cause? i know if too many pcie-lanes are occupied this can happen, but thats not the case. all settings regarding this were left untouched.

it happened after trying to x-fire a 3870 with my new 4850 (which does not work although some people reported about this possibility on the net) and doing some driver deinstall/reinstall. Then i realized theres no net and since then i tried to get it back to life again.

you can think of some things left to try? it is definitely no windows/vista thing because the lights on the nic's arent flashing during boot up like they should and the nics dont show up in the post-irq-table as well (i dont know if they were included in that table before.. could anybody perhaps check this
out?)

that was what i needed for a completely ruined sunday afternoon