well, ive kind of stopped it making the noise by exporting it as a OMF file and then importing it to a new track....weird huh?

still want to kno what was making it happen....

We'd need a whole bunch more information to even speculate on where the problem lies...

The system chain - Front to back - for starters.

??? > ??? > ??? > ??? > PC Running Cubase that has (??? plugins, etc. and ??? wordclock, etc.) > ??? >

mic (sm57)>>>behringer ub802>>>>>stereo in audiophile 2496>>>cubase SX(not going to say what effects and plugins i use because it still happens even when i dont use them)>>>2496 stereo out>>>>2-way splitter>>> wharfedale diamond 8.1 pro-active moniters......is that the kind of thing you are after?

sorry im not much help....
it reminds me of a metrenome or click, but the volume of it comes and goes like an interference of sum sort....

Is the metronome on? Quietly?

Any DSP cards (even if the plugs aren't in use)?

Nothing else connected that may be interfering with the clock?

And the ringer...

Have you tried switching to the generic ASIO multimedia driver?

I had a problem one time that may be similar to this and it drove me nuts. In SX does it look like the cursor can't quite keep with audio playback or recording? EX: as you record, does the cursor thing move faster than the graphical display of the recording audio?
If so, it could be your harddrive. I installed a new Barracuda just for audio and I had this kind of beeping going on in a rhythmic interval. Kind of sounded like a really stupid metronome. Turns out, you have to set the harddrive to UDMA Mode 5, if I remember correctly. I forget where you set that exactly (not at home comp), but its probably in properties or something for your HD. I think mine got set to PIO something or other mode originally. After I switched modes, it was smooth sailing. But I almost died.

Hope that helps in some way.
Oh yeah, check all that other stuff too.

*****Update*****
Here ya go, more details:

It was in Control Panel>System>Device Manager>IDE ATA controllers>Primary IDE Channel(or Secondary if 2nd HD)>right click>Properties>Advanced Settings>Transfer Mode to DMA, and Current Mode to DMA Mode 5.
I think I had to do some goofing around to get it to switch because at first "Current Mode" is greyed out.

cheers for all your imput peeps...

i checked out my thing with the hardrive but it was already set to those settings.
the cursor does ave problems keeping up with the auido when recording but then again my hard drive is about 85% full so that probably isnt helping matters.

this sounds accurs with or without the metrenome on. this might be farfethced but sumtimes i use my pc speakers instead of my monitors to give me my click....could these have been interfering in some way...?

well its had me stumped now for ages. so i appriciate ur input, but i wouldnt worry yourselfs over it. lol.

thanks again

Have you looked at any buffer settings that may be associated with the drivers? On some software (sonar) if it is set too low it causes the Processor to work overtime causing crackling sounds and other issues.