Thanks to all for replies!

upgrade to at least ver 3.02 and you'll get all the solutions!

I've downloaded the trial version from one of the Casio site. The trial version is 3.00.3510.2160 that could be the first 3.00 version.

I've tried to find update to the latest version, but you must be registered user to download the last version.

Can someone help me to find latest version of CP Manager?

Hi mate, I know there's a problem with the way calculators handle this question, but there's a way of getting around it. First of all change the base to exp (use natural log) i.e (ln(x))^2/(ln(2))^2+ln(x^2)/ln(2). Now solve this for x.If it doesn't give you the two solutions that you want, then smash that damn calculator/cpm.And don't waste time trying to solve this question on ti nspire or ti 89 ...no matter what you do, they won't give you the right solns for this question....(only cp/cpm can solve it).By the way, it's a shame that calculators can't solve this simple logarithm and you may be right if you're mad at them...there's no better way you should have done this question other than what you've tried.For God's sake, how can someone know that you have to change the base to get the right answer? And why does anyone have to do that anyway? well .....So just to let you know other option, I've also used mathematicals table and got the two solutions(x,1/4).Mathematical tables are slow to work with but they are more reliable than cp or any other calculator.

I've tried to solve the equation with changing base, but I've got the same result.

Is then a problem with 3.00 version?

Can you tell me why the TI calculators can not handle in the right way this type of equations?

And about mathematicals table: can you explain?

What version of the OS are you using? What mode are you in? I couldn't recreate the problem on my CP - it gave me both solutions... :-)

About OS I have already written: I want however to underline that I don't got the CP calculator, but I'am simply testing the CP Manager.

I've tried to solve the equation in Real Mode, but I think that the problem could be the version of mine CPM...