patch 1.64 problem

[revenant1313]

after i downloaded patch 1.64 when i try to play painkiller it says [string "../data/lscripts/main/cfg.lua"]:342: attempt to call global ' ispkinstalled' (a nil value) what can i do to fix this

[Bjossi]

There are two possible reasons for this error you get.
1) You didn´t install patches 1.61 and 1.62 before 1.64.
2) You downloaded a corrupted version of the patch. A working version can be downloaded from www.gamershell.com

Try and see if these might be the reasons. :)