Fs9 struggles to keep going!

I have recently added a gauge to the VC10 C1K in the tradition of keeping this a/c up to date as it is still flying!!!!The gauge in question is a schematic map which displays on the C1k panel. It takes its information from GPS_export.dll. At the same time I am running FSUIPC with a weather engine and PFE. After about 10-15 minutes the graphics begin to deteriorate to the point where if I select another panel or go to desktop, FS9 crashes. If i do nothing I can nurse Fs9 for about half an hour. For example If I start fs9 in its basic form and then say after 10 minutes start the weather engine that will cause a crash. This is just one of many combinations of crash causes which all seem to point to FS9 having too much on its plate.What I would like to know is: Is it the combination of GPS_export and FSUIPC that FS9 doesn't like or is it just the gauge? The gauge is on avsim -here- It isn't an xml gauge so I can't examine it. For the VC10 I navigate solely with INS (as one should in all commercial jets!!!) I download the flightplan just to confirm i am en-route. The gauge shows a schematic representation of the flightplan route allowing me to visually confirm drift angle or any anomalies with the INS programming. It is quite basic but serves its purpose well---with the exception of bringing FS9 to its knees!I'm not well versed in xml programming and wonder if it is possible to re-create this gauge in xml as perhaps that might solve the graphics memory leak issue. Any ideas welcome. (would it be possible to modify the gps gauge for example?) Thanksvololiberista