ATI HD 7790 is not suppoerted.

[witchcraft]

i have the same card , and i have used the --force flag here is the output:
"oclHashcat-plus v0.14 by atom starting...

Hashes: 234 total, 1 unique salts, 234 unique digests
Bitmaps: 11 bits, 2048 entries, 0x000007ff mask, 8192 bytes
Rules: 1
Workload: 256 loops, 80 accel
Watchdog: Temperature abort trigger set to 80c
Watchdog: Temperature retain trigger set to 80c
Device #1: Bonaire, 2048MB, 1075Mhz, 14MCU
Device #1: Kernel ./kernels/4098/m0000_a0.Bonaire_1124.2_1124.2 (VM).ke
ERROR: ./kernels/4098/m0000_a0.VLIW0.llvmir: No such file or directory"

seems its not supported ...