1.
Open up an image in windowed mode mode (ShowFullScreen=false)
Start a slideshow via the menu (i.e. 3 sec)
After the first transition press the key for fullscreen
Sometimes the taskbar will not hide in fullscreen if the diashow is running
Tends to happen with big images (>= screen size)
2.
Start a slideshow in fullscreen within a folder using the 'blend' transition (default)
Any image that contains true black (#000000) will get its black pixels erased and the previous image from the slideshow will bleed through these pixels
Pressing 'Esc' (pause) will immediately restore the black pixels
I'm using JPEGView 1.0.29 on Windows 7 SP1 x64 using a resolution of 1920x1080
Other users have reported similar issues with slideshow blending on nvidia graphic cards. I haven't seen this problem on any of the cards I have access to.
What is your graphics card?
My graphics card is a Nvidia GeForce GTX 660 made by Zotac.
Thanks for the JPEGView 1.0.30 update! The alpha blending now works correctly!
The taskbar (not)hiding issue still persits though.
Blending issue fixed in 1.0.31.
The taskbar stuff cannot be fixed - visibility of the taskbar is controlled by the operating system. Typically clicking into the JPEGView window makes the taskbar disappear.