hardware device manager error's

[skyman]

new asus P4B533 E mobo,2.o cpu,OKing to 2.5,XP PRO.I am having two problem's that i believe are being caused by below error symbol's that will follow below.The first problem is,i can not get input from mic into system,have checked volume setting's and they are ok.The mic was working,but i had to reload XP after a move,found real problem after reload, to be video card was not seated right,duh!!!!Anyway's no mic input to system,i do get sound to headset/mic,just no voice!mic/headset has been tested,work's fine
Second problem is,when i turn my web cam on,it work's but will flicker randomly,same as above,was working,now not working,it's not the camera.
Now,when i go to hardware device manager,i have a yellow question mark next to other devices with two error marks below,first one say's,PCI simple communications controller,below that is,universal serial bus (usb) controller.
I believe these are causing my problem's!!!!Any help in how to fix those error's would be great!!!!!!

Thank's in advance for your help!!!!!

[richardc]

Often, just deleting the devices with errors and rebooting to let XP detect them correctly helps. Opening MS Messenger and clicking on Tools/Audio and following the Options works too.

[YeOldeStonecat]

And plz try to keep your post in one forum, you got it correct in the hardware forum.