hashcat stopped working fresh install win 8 an cat 13.4

[barboy]

hi i was on cat 13.1 hcatplus64 0.14 yesterday an hashcat ran fine on hd radeon 7870 but today i noticed the hash cat page had updated to hascatplus 0.15 and requires 13.4 or later so i updated to 0.15 and to 13.8 beta2 by accident after following atoms info on another post remove cat/reboot/remove with driver fusion/reboot/ delete opencl.dll`s. installed 13.4 an got hashcat stopped working error. so i gave up an did a fresh install of windows an installed 13.4 first thing after install and im still getting the error. any ideas please its driving me nuts