cgminer apparent freeze up during LTC mining certain PPLNS pools

[paulsltc123]

hopefully a fairly quick and straightforward question..

The ONE rig in question:
Win7 x64 - AMD 8350 on an Asus Sabertooth - 16GB ram
TWO ATI GPU's (1x 7970 and 1x 7950)

both work great.. in unison I get approx 1400 kh/s average hash rate.. have testing in many spots and all looks good and works good...for the most part...

in several cases (some several different P2Pools and PPLNS pools) I can run my cgminer script and away I go..leave it for hours or days and all runs well...but I've now reg'd at a couple other P2Pools... just for further testing.. in this example.. Wincoin and LTC.Kattare.com

simple setup and activation.. the tools that show stats and tracking and all that look fine....BUT now all of a sudden it's freezing...of sorts..

cgminer (in this case 3.0.1) is running.. good hashrate of 1.35 Mh/s+... NO HW errors.. all the STATS on the pool sites are corresponding just fine... but after a while.. (half hour or couple hours)...it apparently freezes...

the miner screen looks the same...but no active new lines coming in showing all the typical data.. the hashrates and stats are all there but NOT changing at all.. my MSI Afterburner still shows FULL GPU UTILIZATION...but apparently the work has stopped... all the stats online eventually show, not active and 0 hashrate, etc.. my ENTIRE system and Win 7 is fine...responsive.. and the CGMiner screen is even responding and I doesn't say it's "Not Responding" or anything like that....and I can close it just fine.. I can close and reconnect in seconds and all is fine again but eventual same apparent freeze up will usually happen

What do you think this is or causing this?

Thanks

[cryptops00]

When you launch cgminer, turn verbose output on, and redirect the output into a file. On linux this is done

Code:

cgminer --verbose > logfile.log

This will give you a better idea as to what is going on.