[LAU] Ati driver installation for low latency kernel (Kubuntu)

Hi list! This is my first post and I hope it's not too off-topic.. I've already posted it in the Kubuntu forums but got no reply, so I hope that someone here can help me. My problem is as follows: On my notebook I have installed Kubuntu, and for my everyday work I use a generic kernel, because the low latency kernel would drain too much power, so that the battery would be empty very soon. For recording I use a low latency kernel. Now the problem is, that in the Ati driver installation, the kernel is modified. If I install the driver while using the generic kernel, it works well with the generic kernel. If I then boot the low latency kernel and install the driver, it only works with the low latency kernel, but not anymore with the generic kernel. Now I would be fine without 3D acceleration while I'm using the low latency kernel, but the annoying thing is that sometimes the system freezes if the driver doesn't work properly. Can anyone help me solve the issue, or does someone know a workaround? I would be most gratefull! Thanks, Matthias