I have exactly the same problem, still no solution. Have you found the solution?
I'm running a new Acer Aspire with WV Business 32bit edition and use Checkpoints Securemote / Secureclient to connect to the company VPN.
Since the release of the Vista version of SR/SC I have been (trying) to run it.
This is what happens. The install goes perfectly, all the miniports etc get installed no problem, the config and connection likewise present no problem at all and there seems to be no problem performance wise.
But after the second re-boot Securemote / Secureclient is missing from the system tray. I look for it in programs and run it, but nothing happens.
I uninstalled and reinstalled the client several times, it works fine for 2 re-boots and then the same thing happens.
2 weeks ago I re-built the entire laptop from scratch, set up Securemote / Secureclient and guess what. 2 reboots later, its gone.
I've tried disabling Norton AV 2007 that I'm running too and have looked through every problem I can find on the internet but I seem t be alone on this one.
There is no other VPN software running on the laptop...
Anyone got an idea of whats going on? Anyone else on Vista on an Acer using the client?
Ta for any ideas