Problem with graphics

[Kai Melhorn]

Hello together,

this is my first time using this list so please be patient, perhaps 
there are some things I should know but I don't.

My problem appeared as follows:
I worked with Lyx 1.5.6 and everything worked fine I think. After I 
heared of the new 1.6.1 version, I decided to have a look and installed 
it. After that all my included graphics seem to appear in inverted 
colours in dvi and ps documents (white is black, blue is orange etc.). 
In Lyx everythings looks great, but when I try to compile the .lyx 
document to .dvi or .ps the result is the switch of colours.
I bind .jpg files into a flowbox.
If anyone could give me a hint what to do, I would be very pleased.

Thanks,

Kai

PS: I attached a .jpg of the two cases (same graphic in lyx and compiled 
in yap as a dvi).
PPS: I tried the archive of the mailing list and the forum. But perhaps 
I overlooked something?
<<inline: Graphicconversion.jpg>>