[WriteLog] Delay on tx with mmtty during CQ WPX contest

[Gordon LaPoint]

During the CQ WPX RTTY contest we had lots of problems with delay in tx 
when using any fkeys.
We were running Multi-Op single tx, a setup we have used many times.   
The hardware is a K3 with KPA-500 amp, 4 years old with many rtty contests.
When hitting any Fkey to tx the delay was random and upto 3 seconds 
long, using Writelog version 12.03C
We finally uninstalled 12.03 and installed 11.24j  (latest full install 
I have) and continued the contest with no delays in keyup.

The computer is a AMD FX 6300 six core 3.5 Ghz with 16Gb of ram, running 
Win 10 Home (will all current updates)
We disabled all virus scanners, disk backup and anything else that might 
cause problems.

I have been using this computer and hardware combo for several years 
without problems, so don't know what the problem might be.
WriteLog setup with mmtty using XMMT.ocx, hardware FSK (using PCIe 
serial cards  *NOT* usb dongles)

We did not have the F10 key problem when using 12.03.

We made over 1200 contacts, not a bad run for "old" guys, so overall 
everything worked fine after the switch to version 11.
We made a greate effort to chase down the problem before going to 
version 11  (turning off the virus checker, unloading the backup 
software, disabling most of the other software that starts when the 
system boots up)

Any help would be appreciated!

Thanks!

Gordon - N1MGO   (team used KT1I for the contest, much better prefix!!)