On the original stock ROMs for the Advent Vega, Viewpad 10s, Mobii POV, … the cache partition is only around 32MB. This is too less to download big games from the Android market.
I had the idea to combine the information from the XDA thread “[GUIDE] Alternitive Partition Sizes” with the “[ROM] ModdedStock_1.10 v2 – Updated Stock ROM Base” that newbe5 created for the VegaComb ROM.
The result is the “VegaModdedStock_v1.10_40MB_Cache” ROM which gives you /system 122.5MB || /cache 40MB || /data 320MB.
To flash this ROM you must connect the tablet with a USB cable to your PC. Then you need to boot into NVFlash recovery. You can find information about this in my post “Advent Vega – Steps to flash a new ROM” in chapter 3a. Now start the EXE file on your PC and it will flash the ROM with the changed partition size.
After flashing this, reboot your tablet, go again into recovery and flash your favorite ROM through the CWM recovery. The partition size will not be changed and you should be fine.
Be carefull, this changed partition size is NOT working with the VegaComb ROMs. They need a bigger system partition!