[Elecraft] P3 forgets settings

[Victor Rosenthal 4X6GP]

In the past few months, my P3 has begun to intermittently forget its 
SPAN and CENTER values (it is always in fixed mode).

It doesn't seem to be related to any changes in firmware in either my K3 
or P3, which I haven't done in some time.

I use the DXLAB software, in case that could have something to do with it.

Before I bother Elecraft, has anyone had a similar isssue?

-- 
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/