<t>A bit like Vista probably. Have you tried running as administrator, or running in XP compatibility mode? I know I had this problem myself, and I think I resolved it by making sure I had the right CUDA version. I see you have 3.1, but Zephyr specifies that you need 2.2. I know it says "or later", ...

Make sure you have the correct version of the CUDA sdk installed, you need version 2.2 or later. Also, make certain your graphics card is one of those that supports CUDA, this you can check on the nvidia website.

I was wondering, when running a simulation in Zephyr with the default settings, what is the effective salt concentration, monovelent, divalent? Is it possible to change these?

I have found that I can load the .gro file, and then load the .trr data into that. However, I was sure that I had been able to load the data into the original .pdb file at some point.

<t>I have started trying out Zephyr for simulating and I have run into a problem. I simulated a molecule for 30,000ps, this finished successfully, and I could view the resulting simulation in VMD no problem. Now, when I load up VMD again, load in the original (and even the processed .pdb file), I ca...

I just installed Zephyr, and the CUDA requirements on a WinXP 32 machine, I have an Nvidia Geforce GT240 and mine is also skipping back to the reference platform.