Image Distortions

We're doing a big module with lots of system simulation. I have a massive amount of screenshots taken from our system using Snag It. Originally I was resizing my images in Lectora, until I realized that made the images look horrible. So I started resizing them all in Snag it, to a standard size and bringing them into Lectora.It honestly did not matter how many images, or how I brought them in, but I would publish and when looking at the module over our LMS none of them would work or just a select few would not. And by not working I mean they were very distorted and blurry. I literally tried everything, and it wasn't a specific solution that I found. But I would just have to keep taking new screenshots and putting them in until it worked.One horrible little thing I did notice is that sometimes when I would insert an image...I'd go to check the properties and move it to my standard position. And, for instance my big screenshots were all 430x302, I can't tell you how many times after I brought the image in, it was resized automatically. Only by a pixel or two, but the image would be 429X300 or something different.Even unchecking the keep original aspect ratio box and rechecking it would make the image go back to what I had originally had it as.Is this Lectora automatically resizing my images?? I have a feeling this is what's causing distortion sometimes because I have to go in and resize the image back to what I want it to be. Has anyone else had this problem or done exstensive system simulation?