newest versions not work

[__KiNG]

hi, since the version of hashcat gui 0.5.0 was released, it dont work for me, after when i seen the version 0,5.1 released i downloaded it but it not works too.
the version released before 0,5.0 was working fine for me.
when i start the attack (using CUDA) i have only the line :

E:\FOLDER\hashcat-gui-0.5.1\hashcat-gui-0.5.1\oclHashcat-plus>

im using : NVIDIA GFORCE GTX 550 Ti CYCLONE II MSI
os : XP pack3 (32 bit)

so plz what is wrong ? my GC is installed correctly and since the version 0.5.0 was released i can not use my graphic card.

/ peace