Use the following steps to calibrate your touch screen :
1. Click Start and then Control Panel, and next Hardware and Sound.
2. Under Tablet PC Settings, tap Calibrate the screen for pen or touch input.
3. On the Display tab, under Display options, tap Calibrate and then Yes to allow the program to make changes.
4. Follow the on-screen instructions to calibrate your touch screen.
Drivers for XP Vista and 7
The problem With Dynabook SS1700MY the touch panel is not working properly especially for windows 7. After a few research I found out that it uses SMK Touch Panel device. So I look all over the web to find the touch panel driver. .I didn't found drivers for SS1700MY but found for SS200, from the Hardware ID both model use the similar device which is " ttabusb, HID\VID_0609&PID_0303". I found this on the Chinese/Japan website (not sure about the language). Just download and install the drivers form the link below:
There are 2 version, the first support windows xp and 7 and the second support win2000/xp/vista and 7.
Drivers From Microsoft:
The driver I found only available Via Microsoft update catalog and Only for Windows XP. There are no Windows Vista or Windows 7 Drivers.
Here is the link for the Windows XP Driver:
Please open the link using INTERNET EXPLORER.
You will see 3-4 drivers on the list, select only drivers tahat compatible with windows XP. To download click add and View basket. After that select download. After download finish, you will have the drivers in CAB (cabinet file format), you can extract the drivers using Winrar software.
You will find ttabctrl.exe in the extracted driver folder. Now one of the method you can use windows XP driver for windows 7 is by installing it in compatibility mode read here).