Did you try another Kaillera.dll?
There are different versions.
I use
n02.p2p v0r6 (Nov 1 2007) 55 KB. This is possibly an
Open Kaillera MOD, which I don't know if I could post it here, so take that info and search for it.
It has 3 modes:
· P2P (Play directly to IP, in this image, me as Host)
· Client (classic, with Rooms and Servers)
· Playback (to view recordings from network matches, as Supercade does).
Of course, it doesn't have that problem with buttons.