[LAU] PCIe cards weak?

This is the first time I have seen this warning: "Due to the reduced length of the PCI EXPRESS bus connector and the resulting lack of mechanical stability, we strongly advise against transporting cards installed in a computer, unless its chassis or case provides a dedicated support to keep the card securely in place in order to avoid physical damage." I found this in the digigram manual for one of their audio cards. (these might be audio cards to watch as ALSA support is growing. The LOLA series is now supported) Anyway, I was wondering if anyone has had problems with this. It seems to me there might be any number of mobile uses in audio work. Maybe the days of the tower cases are over. Speaking of PCIe audio cards, has anyone used the Audio Science audio cards? Have comments? The company actively develops linux audio drivers which are included in kernel source (must GPL?) Or the user can download the latest source from their web site. They have up to 16 i/o per card and support up to 4 cards in a system. They seem a bit pricey for me, then I can't afford the audio interface I have now any more... special needs kids are expensive. But compared to other cards they don't seem over bad. -- Len Ovens www.OvenWerks.net