typing commands are overlapping after crossing the column width in bash shell

Hello, I am getting a weird issue. Whenever I am typing a commands, it is getting overlapped after crossing the column limit. Usually it should be coming to new line. How to fix it? Thanks!
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Please paste the output of the following command.
echo $PS1

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what is the output of command below


beer9Author Commented:
here is the requested info:

bash-3.00$ stty -a
speed 38400 baud; rows 45; columns 157; line = 0;
intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = n; eol2 = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V;
flush = ^O; min = 1; time = 0;
-parenb -parodd cs8 -hupcl -cstopb cread -clocal -crtscts
-ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel
opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke
bash-3.00$ echo $PS1

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beer9Author Commented:
bash-3.00$ stty
speed 38400 baud; line = 0;
eol = n;
-brkint -imaxbel

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what type of terminal are you running? If it is soft terminal then you may check the terminal settings
beer9Author Commented:
Hi, I am using it under 'screen'
beer9Author Commented:
Please let me know if you need more information. Thanks!
beer9, I am not familiar with screen, and I really think that it has to do with your terminal setup (if you are using S/W like telnet client or ssh clients like putty, etc). Please try to see if they have option to change terminal emulation or characteristics.

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